Jennifer Garner's kids pinch

Jennifer Garner's children pinch each other.

The 'Danny Collins' star has Violet, nine, Seraphina, six, and Samuel, three, with her husband Ben Affleck and has admitted they're at an age where they like to bully and hurt one another.

When asked by Jimmy Fallon if she has any advice for raising his two kids Winnie, 19 months, and Frances, three months, Jennifer said during her appearance on 'The Tonight Show' last night (18.03.15): "They just have their, you know, they have their moments... You're driving to school and you kind of hear a yelp. You look in the rear-view mirror and there's just like a pinch happening -- a pinch for the ages.

"The hand is taken back so quickly, you're like, 'Why are you yelling?' Then the other one is like, 'Grrrr.' Yeah, so the pinches."

But pinching isn't the only thing the 42-year-old actress has to deal with as she also admitted her kids are smarter than her.

She explained: "The other thing is that they can get clever. They're all gonna go nuts when there's a new baby, right? One way or another, if it isn't now, it's going to be later. It's coming.

"We had one who wanted to still be the baby, but she never wanted to say, 'I want to still be the baby.'

"She wanted to be carried everywhere. What she was telling us was that she was a mermaid. She had a tail and she had flippers and she needed to be carried everywhere, and we bought it.

"Suddenly I'm lugging this huge kid around and I saw her smiling to herself, smirking. We would get to a staircase and she'd say, 'Oh my tail, with my flippers, I can't make it up that staircase.' "

She added: "We're just totally going along with it... method, for sure. They're smarter than you are so just be ready for that."